CVE-2016-1833

moderate-risk
Published 2016-05-20

The htmlCurrentChar function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted XML document.

Do I need to act?

~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (20)

Affected Vendors

Xmlsoft Apple Debian Canonical Mcafee Redhat

References (46)

Mailing List http://lists.apple.com/archives/security-announce/2016/May/msg00001.html
Mailing List http://lists.apple.com/archives/security-announce/2016/May/msg00002.html
Mailing List http://lists.apple.com/archives/security-announce/2016/May/msg00003.html
Mailing List http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2957.html
Third Party Advisory http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
Patch http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.h...
Third Party Advisory http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htm...
Third Party Advisory http://www.securityfocus.com/bid/90691
Third Party Advisory http://www.securitytracker.com/id/1035890
Third Party Advisory http://www.ubuntu.com/usn/USN-2994-1
Release Notes http://xmlsoft.org/news.html
Third Party Advisory https://access.redhat.com/errata/RHSA-2016:1292
Exploit https://bugs.chromium.org/p/project-zero/issues/detail?id=636
Exploit https://bugzilla.gnome.org/show_bug.cgi?id=758606
Patch https://git.gnome.org/browse/libxml2/commit/?id=0bcd05c5cd83dec3406c8f68b769b1d6...
Patch https://kc.mcafee.com/corporate/index?page=content&id=SB10170
Vendor Advisory https://support.apple.com/HT206564
Vendor Advisory https://support.apple.com/HT206566
Vendor Advisory https://support.apple.com/HT206567
and 26 more references
44
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 4/34 · Minimal
Exposure 22/34 · High